What is the Teleomorph of Fusarium?
As now delimited, Fusarium is still linked to six teleomorph genera in the Nectriaceae, i.e. Albonectria, Cosmospora, Cyanonectria, Gibberella (the teleomorph genus associated with the type species of Fusarium), and Haematonectria, with some species remaining in Nectria sensu Booth.
What are the characteristics of Fusarium?
Characteristics
| Fusarium species | Habitat | Miscellaneous |
|---|---|---|
| Growth at pH 3.3–10.4 Tolerates low oxygen tensions | ||
| F. graminearum | Worldwide: | Min aw 0.90 at 25°C |
| Cereals and grasses | Min pH 2.4 at 30°C | |
| Max pH 10.2 at < 37°C |
What is Collarette in fungi?
Collarette. A small collar. Usually, a remnant of a cell wall present at the tip of a phialide, or around a sporangiophore.
What kind of fungi is Fusarium?
Fusarium is a large cosmopolitan genus of imperfect fungi and is of interest primarily because numerous species are important plant pathogens (Nelson et al. 1981), produce of a wide range of secondary metabolites, and/or cause opportunistic mycoses in humans (Austwick 1982; Michniewicz 1989; Vesonder 1989).
What is meant by Anamorph and Teleomorph?
Teleomorph: the sexual reproductive stage (morph), typically a fruiting body. Anamorph: an asexual reproductive stage (morph), often mold-like.
What are the colony morphology traits of Fusarium species?
Table 1
| Morphological characterization | F. solani | |
|---|---|---|
| Colony coloura | Pale to brown, brown-greenish to white-greenish | White-creamy to white-greyish |
| Pigmentationb | Pale brown yellowish brown with dark brown zonation | Colourless, white-creamy with dark brown zonation |
| Growth rate (cm)c | 3.3 ± 0.2 | 3.5 ± 0.2 |
| Microscopic characteristic |
What is the habitat of Fusarium?
Habitat/Ecology Fusarium species are ubiquitous and may be found in the soil, air and on plants {2972}. They are mostly known as associated with cereal crops and grain dust {2982}, rye, barley, corn, oats and buckwheat {1182}.
What do Phialides give rise to?
Dematiaceous fungi Two types of phialides are produced: the more distinctive has a markedly flared, saucer-shaped collarette giving rise to spherical conidia (2–3 μm). The second has an inconspicuous collarette and cylindric, often curved, conidia (1–3 × 2–6.5 μm) (Fig.
What are Fusarium mycotoxins?
Fusarium mycotoxins are world-spread contaminants naturally occurring in commodities, food and feed [1,2,3,4,5,6]. The majority of mycotoxicoses result from eating contaminated foods, but skin contact and inhalation of toxins are also sources of exposure [7].